106results about How to "Reduce on-site work" patented technology

The invention discloses a solar driven vertical louver solar protection device, which comprises a support frame, a tubular motor, a solar photoelectric film, a vertical louver board, a solar radiation probe, a temperature probe, a controller, a storage battery and a calculator; the solar photoelectric film is attached onto the surface of the vertical louver board, and the solar photoelectric film is connected with the storage battery through the controller so as to charge the storage battery; the tubular motor which is installed inside a rotating shaft of the vertical louver board is electrically connected with the storage battery through a conducting wire; the tubular motor is also connected with the calculator through signals; the solar radiation probe and the temperature probe are respectively installed on the top end of a vertical sunshading board, the solar radiation probe and the temperature probe are respectively connected with the calculator through signals, and the deflection angle of the vertical louver board is calculated according to the data of the sun position and the limited value of the outer sunshading coefficient; and the rotating device controls the vertical louver to rotate according to the calculated best angle so as to realize the best sunshade and lighting effect.

The invention relates to a torque measurement device, which comprises a stepped shaft, a sensing element, a shaft sleeve, a conditioner unit and a wireless transmission unit, wherein the stepped shaft is divided into a paster part and a part provided with an external spline along the axial direction of the stepped shaft; the sensing element is arranged at the paster part of the stepped shaft; the shaft sleeve is connected with the stepped shaft and is of a hollow shape internally, and the hollow structure is provided with an internal spline; the conditioner unit and the wireless transmission unit are all arranged at the upper side of the shaft sleeve and are connected with a full bridge converter; the conditioner unit is used for converting the voltage output by the full bridge converter into a digital signal the amplitude of which corresponds to the torsion thereof; and the wireless transmission unit is used for transmitting the digital signal. The invention greatly reduces the fieldwork of torque measurement, does not need to replace the existing device, and does not need to carry out polishing, cleaning and foil gauge sticking and bridge forming and the like on a measured shaft, thereby enabling the field installation and torsion measurement operation to be much simpler, avoiding the measurement error caused by field foil gauge sticking, and being recycled.

The invention provided a column-beam joint structure of buildings in which operations in each process from the manufacture of columns made of PCa and beams made of PCa, their transport, and their assembly in the field can be consistently and easily performed without restraints and concrete placing operations can be omitted by completely pre-casting the column-beam joint structure. In the column-beam joint structure 4, horizontal through holes 7 are formed in a column joint section 6 of a column 3 made of PCa, connection reinforcing bars 10 for beams are protruded from faces 9a on one side of girders 5 and 5a, and a plurality of sleeves 12 for beams are provided for the inside of faces 9b on the other side. By passing the connection reinforcing bars for beams of the girders through the through holes of the column joint section of the column made of PCa and inserting them in the sleeves for beams of adjacent, already placed girders, girders are joined to each other via the column joint section.

The invention discloses a welding type slab crack joint for a precast concrete floor system used in a building. The welding type slab crack joint comprises an X-shaped connection piece, a cover slab type connection piece, a support plate side overhanging platform and a supported plate side overhanging platform, wherein the X-shaped connection piece consists of anchor bars, panels and panel strips; the cover slab type connection piece consists of reinforcing steels arranged at the bottom of a slab, an embedded steel plate and a cover plate; the upper ends of the support plate and supported plate sides are provided with metal embedded pieces which consist of the anchor bars and the panels; the panels of the support plate is fixedly connected with the panels of the supported plate by the panel strips to form the X-shaped connection piece; the lower ends of the support plate and the supported plate sides are embedded with metal plates which are welded with the reinforcing steels at the bottom of a precast slab; the embedded metal plates of the support plate and the supported plate are fixedly connected by a metal cover plate to form a cover plate type connection piece; and after being overlapped with each other, the support plate side overhanging platform and the supported plate side overhanging platform are fixedly connected by the X-shaped connection piece at the top of the slab and the cover plate type connection piece at the bottom of the slab.

The invention relates to a production process of a fabricated lightweight inner partition board. The production process comprises the following steps: cleaning a die; coating and brushing die releasing oil; paving a bound reinforced cage and an embedded part in the die; pouring concrete, and vibrating the concrete; and performing surface finishing and die releasing maintenance after the concrete is fully vibrated; wherein the concrete comprises cement, silicon powder, ceramsite, crushed ceramics, glazed hollow bead, tackifier, a polycarboxylate superplasticizer and water. According to the production process, a lightweight material or physical bubbles are introduced into the above lightweight concrete, so that the volume weight of the lightweight board can be reduced to be 1000 to 1400kg/m<3>, and the intensity of the lightweight board is more than 8MPa; meanwhile, the concrete is outstanding in working capacity and applicable to construction; and in addition, various physical performance indexes of the concrete meet the lightweight board standard requirements.

The invention relates to a full-prefabricated floor special for a fabricated steel structure. The full-prefabricated floor is arranged on a steel beam and comprises a steel bar truss, surface bars, bottom bars, an embedded part and a prefabricated concrete layer. The steel bar truss comprises upper string steel bars, lower string steel bars and erecting bars. The upper string steel bars and the lower string steel bars are arranged in parallel and welded to the upper ends and the lower ends of the erecting bars correspondingly. The erecting bars are arranged at equal intervals, and the surfacebars and the upper string steel bars of the steel bar truss are bound together. The bottom bars and the lower string steel bars of the steel bar truss are bound together, and the steel bar truss, thesurface bars, the bottom bars and the embedded part are pre-embedded in the prefabricated concrete layer. The embedded part is connected with the steel beam. According to the full-prefabricated floor,through effective connection with a steel structure main body, the structural integrality and shock resistance are improved, meanwhile, only a joint laminated layer needs to be cast in situ, and thefabricated efficiency is greatly improved, so that the full-prefabricated floor can play a significant role in the fabricated steel structure field.

The invention relates to a composite floor slab special for an assembled steel structure. The composite floor slab is arranged on a steel beam and comprises a rebar truss, bottom rebars, embedded members and a prefabricated layer, the rebar truss comprises upper-chord rebars, lower-chord rebars and web member rebars, the upper-chord rebars and the lower-chord rebars are arranged parallelly to eachother and are in isosceles triangle distribution, and the web member rebars are welded between the upper-chord rebars and the lower-chord rebars; the bottom rebars are bound together with the lower-chord rebars of the rebar truss and are perpendicular to the same, the rebar truss, the bottom rebars and the embedded members are embedded in the prefabricated layer, and the embedded members are connected with the steel beam. By the composite floor slab, the problem in connection between conventional composite floor slabs and steel structures is solved; through effective connection with a steel structure body, integrity and aseismicity of the structure are improved, so that the composite floor slab can play a great role in the field of the assembled steel structure.

The invention discloses a vertical shaft-coupling throw searching technique for a large-scale water turbine, and the technique comprises the steps: enabling a water turbine and a generator water turbine shaft (1) to achieve the vertical shaft coupling with a generator shaft (2), and adjusting the concentricity through a vertical method, thereby reducing the deflection, caused by a horizontal type,of the shaft, and improving the alignment precision; employing a counter point uniform distribution steel wire suspending method, precisely measuring the concentricity, and eliminating the system deviation through counter point measurement, thereby improving the precision; and reasonably setting an adjustment device at the external periphery of a shaft coupling flange surface. The technique doesnot occupy equipment, is simple in operation, is reliable in precision, overcomes a difficulty in the vertical adjustment after the shaft coupling of the generator water turbine shaft (1) and the generator shaft (2), improves the adjustment efficiency and precision, is novel, reasonable and simple, enables the machining quality to be controllable, and is high in precision.

A sheet for repairing and reinforcing a concrete structure is provided as a lamination having a protective layer and a sticking layer. A method of repairing and reinforcing a concrete structure by sticking the sheet to the surface of the structure is also provided. The invention is able to facilitate the operation of applying an adhesive and paint at a construction site and facilitate construction work.

The invention relates to an embedded cylindrical nut anchor bed and a use method thereof. The embedded cylindrical nut anchor bed comprises a cylindrical body with a first inner threaded hole, wherein the front end part of the cylindrical body is provided with a positioning flange part which is provided with a positioning hole, and the rear end part of the cylindrical body is closed and is provided with a round hole connected with a structural reinforcing steel bar; or the rear end part of the cylindrical body is provided with a second threaded hole in threaded connection with the structural reinforcing steel bar. The use method comprises the following steps of: (1) arranging a plug screw into the inner threaded hole inside at the front end part of the embedded cylindrical nut anchor bed by using a tool; (2) connecting the rear end part of the embedded cylindrical nut anchor bed with the structural reinforcing steel bar; (3) jacking the positioning flange part on a template and fixing the positioning flange part on the wood template by using iron screws or self-tapping screws; and (4) pouring concrete into the wood template, detaching the wood template after the concrete is set, and when an external structure is in need of the embedded cylindrical nut anchor bed, arranging the external structure in the first inner threaded hole in a screw joint manner.

The invention relates to the technical field of circuit breakers. The invention particularly relates to an intelligent miniature circuit breaker based on the Internet of Things sea computing technology and a setting method. The circuit breaker comprises a collection unit, a monitoring unit and an execution unit; the collection unit comprises a data collection module and a signal processing module;the monitoring unit comprises a central processing unit integrating an Internet of Things sea computing algorithm and a metering module; the execution unit comprises a control module, a storage module and a communication module; the signal processing module is electrically connected with the data acquisition module and the metering module; the central processing unit is electrically connected with the metering module, the control module, the storage module and the communication module; and the data acquisition module comprises a current sampling circuit, a voltage sampling circuit, a leakagecurrent detection circuit and a temperature detection circuit, and sends current detection data, voltage detection data, leakage current detection data and temperature detection data to the central processing unit through the signal processing module and the metering module respectively.

The invention relates to a method for constructing a shear wall cast-in-place area by adopting decoration integrated plates. The method comprises the steps that a first prefabricated wall, a second prefabricated wall and a third prefabricated wall are installed; the decoration integrated plates are arranged on the outer wall surface of the first prefabricated wall and the outer wall surface of the second prefabricated wall; the first prefabricated wall and the second prefabricated wall are sequentially arranged in a spaced mode; the third prefabricated wall is perpendicular to the first prefabricated wall and the second prefabricated wall; the first prefabricated wall and the second prefabricated wall are arranged on the two sides of the third prefabricated wall correspondingly; the first prefabricated wall, the second prefabricated wall and the third prefabricated wall form the shear wall cast-in-place area in an enclosing mode; the decoration integrated plates stretch into the outer side of the edge of the first prefabricated wall and the outer side of the edge of the second prefabricated wall, so that an outer-side formwork of the shear wall cast-in-place area is formed; enclosing formworks and embedded parts are laid in other parts of the shear wall cast-in-place area; transversely-arranged U-steel is laid on the outer sides of the decoration integrated plates; soft cushion layers are arranged at the joints of the U-steel and the decoration integrated plates; the U-steel is connected with the third prefabricated wall through a bolt assembly; and concrete is poured in the shear wall cast-in-place area. According to the scheme, the prefabricated production links can be decreased, and the production efficiency is improved.

The invention discloses an integral molding tool for glass steel door and a sets and its producing method. It has the upper stencil, still has the bottom stencil with the bottom pedestal and the sideboard stencil with the sideboard pedestal, between the two pedestal ,there is the hinge conjunction. Because there is a hinge conjunction between the bottom and the sideboard of the invention molding tool, when the glass steel product model solid turns after, the sideboard stencil can roll over, then the dismantle the product from the bottom stencil directly without any obstruct , taking off the mold very simple .So we can carry out the glass steel door or a set from the model as a whole, the product is seamless, using for decorating is very good, the spot homework is little, the sets produced with the invention method need only particularly suite on the wall, then take in to fix, install it very quickly, so it develops another world for the operation of the glass steel door and a sets.